<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>R: Nicholson's Blowfly data</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="R.css" />
</head><body>

<table width="100%" summary="page for blowfly"><tr><td>blowfly</td><td style="text-align: right;">R Documentation</td></tr></table>

<h2>Nicholson's Blowfly data</h2>

<h3>Description</h3>

<p>Data on a laboratory population of Blowfies, from the classic
ecological studies of Nicholson.</p>


<h3>Usage</h3>

<pre>
data(blowfly)
</pre>


<h3>Format</h3>

<p>A data frame with 2 columns and 180 rows. The columns are:
</p>

<dl>
<dt>pop</dt><dd><p>Counts (!) of the population of adult Blowflies in one of the experiments.</p>
</dd>
<dt>day</dt><dd><p>Day of experiment.</p>
</dd>
</dl>


<h3>Details</h3>

<p>The population counts are actually obtained by counting dead
blowflies and back calculating.
</p>


<h3>References</h3>

<p>Nicholson, A.J. (1954a) Compensatory reactions of populations to stresses and
their evolutionary significance. Australian Journal of Zoology 2, 1-8.
</p>
<p>Nicholson, A.J. (1954b) An outline of the dynamics of animal populations. 
Australian Journal of Zoology 2, 9-65.
</p>
<p>Wood, S.N. (2006, 2017) Generalized Additive Models: An Introduction with R
</p>


<h3>Examples</h3>

<pre>
  data(blowfly)
  with(blowfly,plot(day,pop,type="l"))
</pre>


</body></html>
